Open Stack

Cool.  Got it.  Floating IPs or what Amazon calls Elastic IPs.  How are you solving the cross L2 problem?

Erik

Sent from my iPhone

On Apr 15, 2011, at 7:28 PM, "Eldar Nugaev" <enugaev at griddynamics.com> wrote:

> Hi Erik
> 
> Thank you for response!
> Yes, you are absolutely right OpenStack API already support shared IP groups.
> Suppose there are some misunderstanding, because I wrote about floating IPs.
> 
> I want to have API for association IPs from floating IPs pool with
> particular VM.
> 
> At this moment we have #1 implementation as a path in our RPM repo
> http://yum.griddynamics.net/. And going to make the merge proposal to
> trunk.
> 
> Also we going to create blueprint about #3 and attach branch to it.
> 
> Eldar
> 
> On Sat, Apr 16, 2011 at 2:34 AM, Erik Carlin <erik.carlin at rackspace.com> wrote:
>> Eldar -
>> 
>> The OpenStack API already supports sharing IPs between instances (although
>> this may be an extension?).  What exact behavior are you after?  More
>> important than the way in which we expose via the API is how it's
>> implemented.  It's important to note that this is extremely network
>> topology dependent.  Sharing IPs today requires L2 adjacency so other VMs
>> can GARP for the IP.  L2 doesn't work at scale so you need another
>> mechanism.  I'm pretty sure the way AWS does it is to have a separate pool
>> of IPs and inject /32 routes higher up that route towards the appropriate
>> VM IP.  What are your thoughts around how this would be implemented?
>> 
>> Multiple people are working towards an independent Network as a Service
>> external to nova so it may make sense to plug this requirement in there.
>> 
>> Erik
>> 
>> On 4/11/11 8:31 AM, "Eldar Nugaev" <enugaev at griddynamics.com> wrote:
>> 
>>> Hello everyone,
>>> 
>>> We going to add possibility to assigning floating IP addresses in
>>> OpenStack API.
>>> Our goal reproduce AWS behavior when creating instance automatically
>>> assigns any free floating IP or add methods to OpenStack API for
>>> allocation and association API addresses.
>>> 
>>> At this time we see three way:
>>> 
>>> 1. FLAG --auto_assign_floating_ip (default=False)
>>> 2. Optional parameter "auto_assign_floating_ip" in existing "create"
>>> method
>>> 3. OpenStack API add floating_ip - allocate_floating_ip,
>>> associate_floating_ip
>>> 
>>> What way is more suitable at this time?
>>> 
>>> --
>>> Eldar
>>> Skype: eldar.nugaev
>>> 
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>> 
>> 
>> 
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> 
> 
> 
> -- 
> Eldar
> Skype: eldar.nugaev


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